Washington, D.C.: American Association of State Highway and Transportation Officials,, c2005.

Page. NO

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38 p.: , ill. , 28 cm.

Notes

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Language: انگلیسی

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"February 2005."--Cover.

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"The AASHTO Board of Directors first approved this document in December 1997 by more than the required two-thirds majority vote. It was revised and updated with the current data in December 2004, but the emphasis areas and strategies identified in the original plan remain the same."

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"The NCHRP series 500 guides referred to throughout this document provide updated strategies for substantially reducing roadway injuries and fatalities."